<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<title></title>
		<style>
			div {
				width: 100%;
				height: 400px;
				background-color: #ff0;
				/* 渐变背景“图” */
				/* background-image: linear-gradient(90deg, red  0%, lightgreen 50%, purple  100%); */
				/* background-image: linear-gradient(0deg, #666  0%, #333 10%, #fff  80%, #ccc 90%,  #eee 100%); */
				/* 重复的渐变背景图 */
				/* background-image: repeating-linear-gradient(90deg, red  20px, lightgreen 50px, purple  80px); */
				
				/* 径向渐变 */
				background-image: radial-gradient(300px  at  50%  50%, red  0%, lightgreen 50%, purple  100%);
			}
		</style>
	</head>
	<body>
		<div></div>
	</body>
</html>
